package com.kuang.controller;

import org.springframework.lang.Nullable;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.thymeleaf.util.StringUtils;

import javax.jws.WebParam;
import javax.servlet.http.HttpSession;

@Controller
public class LoginController {

    @RequestMapping("/user/login")
    public String login(@RequestParam("username") String username, @RequestParam("password") String password,
                        Model model, HttpSession session) {
        if (!StringUtils.isEmpty(username) && "123456".equals(password)) {
            session.setAttribute("loginUser", username);
            return "redirect:/main.html";
        } else {
            //告诉用户登录失败
            model.addAttribute("msg", "用户名或者密码错误");
            return "index";
        }
    }

    @RequestMapping("/user/logout")
    public String logout(HttpSession session){
        session.removeAttribute("loginUser");
        return "/index";
    }
}
